Skip the auto shop - Our mechanics make house calls

Q: Car won't run over certain mileage

asked by on

My car won't run over 30 mph.

A: If there are any Check Engine lights or oth...

If there are any Check Engine lights or other dash lights on, the car might be stuck in limp home mode. This is a computer failsafe mode that disables certain features for passenger safety because it has detected a major fault. I would run a Check Engine Light inspection and have this car scanned for codes by a certified mobile mechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Limp mode

Hello, thank you for writing in. The Limp Mode is activated as a safety precaution due to the computer detecting an issue that will potentially cause further damage. There are a wide variety of sensors that are inputs for the...

Q: Car overheated and battery light came on, now car won't start.

It sounds like you have had a failure of one of the belt driven accessories under your hood. The pulleys attached to you engine have bearing in them so they can spin freely. When one of these bearings fail you...

Q: Driver window won't go up

I’ll assume you have power windows. There are two key components. The lift motor, and the regulator. Either one could be the problem. It could also be a defective switch, or a wiring issue. A qualified mechanic from YourMechanic can...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...